JEE Math Practice Question
Consider a family of circles which are passing through the point $$(-1, 1)$$ and are tangent to $$x$$-axis. If $$(h, k)$$ are the coordinate of the centre of the circles, then the set of values of $$k$$ is given by the interval :
- A.$$ - {1 \over 2} \le k \le {1 \over 2}$$
- B.$$k \le {1 \over 2}$$
- C.$$0 \le k \le {1 \over 2}$$
- D.$$k \ge {1 \over 2}$$
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